Portion of a controller primarily intended for an electric motor



FIG. 1 is a front elevational view of a portion of a controller primarily intended for an electric motor showing my new design, the remainder of the controller shown in broken lines form no part of the claimed design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front, bottom, and left side perspective view thereof;

FIG. 4 is a front, top, and right side perspective view thereof; and,

FIG. 5 is a front, top, and right side perspective view thereof, with a removable component detached. 

The ornamental design for a portion of a controller primarily intended for an electric motor, as shown and described. 